CN103043878B - A kind of mud, the microwave energy saving drying means of coal slime and device thereof - Google Patents
A kind of mud, the microwave energy saving drying means of coal slime and device thereof Download PDFInfo
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- CN103043878B CN103043878B CN201110308710.7A CN201110308710A CN103043878B CN 103043878 B CN103043878 B CN 103043878B CN 201110308710 A CN201110308710 A CN 201110308710A CN 103043878 B CN103043878 B CN 103043878B
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- 238000001035 drying Methods 0.000 title claims abstract description 134
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 66
- 239000003245 coal Substances 0.000 title claims abstract description 65
- 238000010438 heat treatment Methods 0.000 claims abstract description 44
- 239000000428 dust Substances 0.000 claims abstract description 43
- 239000000463 material Substances 0.000 claims abstract description 25
- 238000001816 cooling Methods 0.000 claims abstract description 18
- 229920002456 HOTAIR Polymers 0.000 claims abstract description 5
- 238000010521 absorption reaction Methods 0.000 claims abstract description 5
- 239000006200 vaporizer Substances 0.000 claims description 35
- 239000007789 gas Substances 0.000 claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
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- 239000007788 liquid Substances 0.000 claims description 12
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- 239000002184 metal Substances 0.000 claims description 9
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- 239000011345 viscous material Substances 0.000 claims description 9
- 239000000567 combustion gas Substances 0.000 claims description 7
- 238000001704 evaporation Methods 0.000 claims description 7
- 239000000295 fuel oil Substances 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 239000010802 sludge Substances 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 238000005192 partition Methods 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000006297 dehydration reaction Methods 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims 1
- 238000010025 steaming Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 description 9
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- 238000000926 separation method Methods 0.000 description 5
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- 238000005516 engineering process Methods 0.000 description 4
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- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
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- 239000003546 flue gas Substances 0.000 description 2
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- WCTAGTRAWPDFQO-UHFFFAOYSA-K trisodium;hydrogen carbonate;carbonate Chemical compound [Na+].[Na+].[Na+].OC([O-])=O.[O-]C([O-])=O WCTAGTRAWPDFQO-UHFFFAOYSA-K 0.000 description 1
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Abstract
A kind of mud, the microwave energy saving drying means of coal slime and device thereof, the method includes: by microwave with add hot-air and be passed through in rotor drying machine casing；Material heating is reduced its viscosity by microwave, and its surface is heated by hot blast, and after Hybrid Heating, rotor is disperseed；Dried material is from closing the output of wind blow-off valve, and damp-heat air is discharged from casing, first passed through cyclone dust removal machine dedusting, enter back into the cooling of heat pipe exchanger heat absorbing end, flow out the high damp-heat of middle temperature, then enter source pump, after dedusting, cooling, wet down, become low temperature and low humidity steam；Then absorb heat energy output from the outlet of source pump, become the low damp-heat of middle temperature；Heat up through the heat absorption of heat pipe exchanger release end of heat, become the low damp-heat of middle high temperature；It is introduced to heating furnace heating again, becomes the low damp-heat of high temperature.This device includes: heating furnace, microwave rotor drying machine, cyclone dust removal machine, heat pipe exchanger, source pump, dust excluding hood.The present invention has efficiently, environmental protection and the advantage of good reliability.
Description
Technical field
The invention belongs to mud, coal slime technical field of drying, specifically, be to use microwave dirty with hot blast combination drying
The viscous material such as mud, coal slime, and to discharging energy-saving drying method and the device thereof of heat energy recycle in dampness.
Background technology
Being dried field at mud and coal slime at present has a kind of rotor dry technology and equipment to use, such as patent a large amount of
Described in CN101885573: one utilizes boiler afterheat process wet device of sludge and process technique, and the present invention includes boiler, boiler
Being connected with coal conveyer belt device, exhaust smoke processing device respectively, its structural feature is that the flue of exhaust smoke processing device is respectively with being dried
Machine and air-introduced machine, cyclone separator are connected with drying machine, and the side of drying machine is connected with mud storage silo, and finished bin passes through spiral
Conveyer is connected with coal conveyer belt device.Described in patent CN201406368: drying machine is (at a kind of waste heat utilizing boiler smoke
Manage wet mud), its structural feature is to be provided with scraper plate in the casing both sides on body, and scraper plate is separately positioned on axle and the electricity of body
On arbor, the both sides on casing top are respectively air inlet, air outlet, and the side of casing is provided with into mud pipe；Box bottom is arranged
Having rotor, rotor to be fixed in motor-driven rotor shaft, the bottom of rotor is provided with closes wind blow-off valve.
Owing to mud, mud coal class material are after mechanical dehydration, water content at about 30-40%, this mud fine size, viscosity
Greatly, calorific value low, above-mentioned patented method and product be dried in mud, coal slime present in shortcoming be: 1, material dispersion is poor, material
Being not easy to be broken up by rotor, material top layer and air contacting surface are easily dry and kernel is difficult to be dried；2, due to drying machine intracavity cigarette
Temperature is high, material top layer overdrying, and kernel is difficult to be dried, heat smoke energy dissipation more than needed in causing drying machine；3, carry greatly
The dampness of calorimetric energy directly discharges and had both caused a large amount of heat energy loss, causes again high temperature moisture and internal harmful gas dirty to environment
Dye.
Summary of the invention
It is an object of the invention to, it is provided that a kind of mud, the microwave energy saving drying means of coal slime.The method use microwave with
Hot blast rotor drying machine is in drying chamber mixing, simultaneously dried material, and configures energy saver and the discharge tail of damp and hot tail gas recycle
The method of the environment-friendly processing unit of gas.It is exactly particularly with microwave and thermal current combination drying, improves viscous material simultaneously
Inside and outside bulk temperature, reduces material viscosity, is easy to rotor to material scattering and separation, it is achieved the inside and outside synchronization of viscous material is dried；
Solve in the damp and hot tail gas of high temperature energy regenerating with heat pipe and heat pump techniques and recycle, reducing thermal pollution discharge and system energy
Consumption；With dust in cyclonic separation, guard and membrane filtration tail gas, reduce the dust level in tail gas；Existing rotor is overcome with this
The defect that dry technology is dried in mud, coal slime.
Another object of the present invention, it is provided that the device that a kind of mud, the microwave energy saving environmental protection of coal slime are dried.
Solve the technical problem that required for the present invention, can be achieved through the following technical solutions:
As a first aspect of the present invention, it is provided that a kind of mud, the microwave energy saving drying means of coal slime, its feature exists
In, comprise the following steps:
(1) atmosphere temperature rising is become the low damp-heat of high temperature by heating furnace, is passed directly into the air inlet of microwave rotor dryer cavity；
Mud to be dried, coal slime viscous material are carried to rotor drying machine intracavity continuously by microwave rotor drying machine charging aperture；Microwave
The microwave energy that power supply produces through drying machine metal shell by microwave waveguide feed-in mouth, is input to microwave rotor and is dried body
In；In drying machine, above-mentioned hot-air, microwave and mud, coal slime material three carry out in rotor drying box mud or
The microwave of coal slime material, hot blast Mixture drying method；
(2) in the low damp-heat of high temperature is passed directly into microwave rotor drying machine together with the microwave being passed through, to from feed bin simultaneously
Mud or coal slime viscous material that in entrance rotor drying machine, humidity is higher carry out the heating of microwave entirety and hot blast surface heat transfer；Make
Mud or coal slime heated after, overall reduce viscosity, agglomerate is easier to be broken up by rotor scraper plate；Mud or coal slime agglomerate are beaten
After Saning, increase surface area, material moisture are by rapid evaporation, carry to drying machine tail end with the low damp-heat of high temperature；
(3) bottom of microwave rotor drying machine is provided with and closes wind blow-off valve, dehydrated sludge or the coal slime end from drying machine
Portion closes wind blow-off valve and discharges；During in being dried, the low damp-heat of high temperature becomes after heat exchange, hot and humid steam is from drying machine
Other end top is discharged, and first passes through cyclone dust removal machine, removes a large amount of mud or coal slime dust, absorbs heat subsequently into heat pipe exchanger
End is lowered the temperature, and becomes the high damp-heat of middle temperature；
(4) the high damp-heat of middle temperature is after heat pipe exchanger heat absorbing end is lowered the temperature, subsequently into the entrance of source pump, heat pump
The entrance of unit arranges a vaporizer, and the high damp-heat of middle temperature releases heat energy at this, and its heat energy is absorbed by the working medium in vaporizer；
Simultaneously decline change because of temperature, the water-vapo(u)r saturation of this fraction and separate out in a large number, become low temperature and low humidity steam；
(5) low temperature and low humidity steam is introduced to the outlet of source pump, and this outlet arranges a condenser, and described condenser is heat
The outfan of pump assembly, the heat energy that the vaporizer of source pump entrance is absorbed by described condenser by working medium, the most again
Feed back to low temperature and low humidity steam so that it is become the low damp-heat of middle temperature；
(6) then, the described low damp-heat of middle temperature is introduced to heat pipe exchanger release end of heat and heats up, and absorbs the heat energy of heat pipe
After, become the low damp-heat of middle high temperature；
Described heat pipe exchanger heat absorbing end cooling with heat pipe exchanger release end of heat heat up be by pipeline circulate connect same
One heat pipe completes, the heat energy that the heat pipe exchanger that the low damp-heat of middle temperature is absorbed is released, it is simply that heat pipe exchanger absorbs before
In the energy of hot and humid steam.
Heat pipe exchanger receives the energy of heat pipe exchanger heat absorbing end transmission release by liquid working substance, the most again by heat
Pipe exchanger release end of heat releases heat to flowing through air.
(7) in, the low damp-heat of high temperature is introduced to the wind inlet section of heating furnace, through the heating of heating furnace, becomes high temperature low damp and hot
Gas, enters back in microwave rotor drying machine.
Wherein in step (1), heating furnace is fire coal, combustion gas, the air stove of fuel oil or muffle electric furnace.
High temperature low damp-heat absolute water content is low, water separation capability strong, no matter directly heats or indirectly heats, if all few
Calorimetric just can reach higher temperature；Its humidity not climate and the impact of wind and snow fine wet weather.
Wherein in step (1), microwave rotor drying machine is a kind of universal rotor drying machine, it is therefore intended that increase microwave merit
The device of rate.
Microwave rotor drying machine includes: being dried in the drying box both sides on body and be provided with scraper plate, scraper plate is respectively provided with
On the axle and motor shaft of body, the both sides on casing top are respectively air inlet, air outlet, and the front end of casing is provided with charging
Pipe；Box bottom is provided with rotor, and rotor is fixed in motor-driven rotor shaft, and the bottom of rotor is provided with closes wind discharge
Valve；Described casing is steel plate structure, and whole drying box and inside are by industrial microwave heating schedule and the design of anti-leak standard.Institute
The microwave energy stating microwave power supply generation passes drying machine side, top or bottom by microwave waveguide feed-in mouth, is input to microwave
In rotor dryer cavity.
Wherein in step (2), the low damp-heat of high temperature enters drying machine casing on front side of drying machine, after cooling moisture absorption air-flow from
Discharge on rear side of drying machine casing.
Wherein in step (2), mud and coal slime are entered pug pipe and are entered drying box from the front end of drying box, dirty after dehydration
The wind blow-off valve that closes that the dry rear product of mud and coal slime is arranged from the bottom of drying machine rotor is discharged.
Wherein in step (2), microwave frequency uses 2450MHz or 915MHz, and whole drying chamber presses industrial microwave anti-leak
Standard designs, and all microwave feed-in mouths to do dust-proof and hot blast partition process.
In dry run, microwave mainly auxiliary heating mud and the inside of coal slime material, reduce its viscosity；And hot blast is
The main energetic of dried material moisture；In drying machine, the effect of rotor is that material is broken into fritter, and from bottom the most upwards
Raise throwing, it is simple to hot blast conducts heat, and completes to be dried by its moisture evaporation.
Wherein in step (3), cyclone dust removal machine is the common apparatus of dedusting industry, and it is widely used in air cleaning；
Wherein in step (3), heat pipe exchanger uses metal shell to make, and has two ends, is heat absorbing end and release end of heat respectively.
Heat pipe exchanger is connected by circulation line, is provided with liquid working substance, and constitutes circulating heat pipe in heat pipe；Heat is exchanged by heat pipe
Device one end of absorbing heat reaches other heat release one end.This circulation is quickly carried out, and heat can be come by conduction continuously,
This exchanger can exchange the heat energy than common heat pump higher temperature.Described heat pipe exchanger heat absorbing end is by middle high after cyclone dust removal
The high damp-heat of temperature cools to less than 100 DEG C, and heat in hot and humid steam in absorbing.
In heat pipe exchanger heat absorbing end, working medium is absorbed heat from high temperature gas flow, is stored energy in working medium.Heat pipe heat release
End, in working medium from low-temperature airflow heat release, discharged from working medium by storage energy.
Wherein in step (4), described source pump includes vaporizer, condenser, compressor, expansion valve, dust excluding hood, working medium
Fluid reservoir and controller.
Wherein in step (4), described vaporizer is the arrival end of source pump, and the high damp-heat of middle temperature drops at vaporizer
Temperature, by working medium in heat energy passes to vaporizer in air-flow, after cooling in thermal current steam because of water-vapo(u)r saturation curding out, this gas
Flow and aqueous significantly decline, form low temperature and low humidity steam；Dismountable dust excluding hood it is respectively arranged with before and after described vaporizer；Described
Lay cold water collecting device below vaporizer, the harmful gas in the cold water separated out and dissolving water, dust etc. are concentrated heel row
Go out；Described dust excluding hood is to the low temperature and low humidity steam dedusting after cooling.
Wherein in step (5), condenser is the outfan of source pump, is introduced through low temperature and low humidity steam cold from vaporizer
At condenser, absorptive condenser is discharged heat and is heated up and become the low damp-heat of middle temperature.
Wherein in step (6), heat pipe exchanger release end of heat is connected by circulation line with aforementioned heat pipe exchanger heat absorbing end,
And constitute circulating heat pipe；Described heat pipe exchanger release end of heat absorbs the energy of heat pipe exchanger heat absorbing end transmission by working medium,
The most again to flowing through air releasing heat；Described heat pipe exchanger release end of heat is to the low damp-heat heat release of middle temperature, and is heated up,
Become the low damp-heat of middle high temperature.
Wherein in step (7), the low damp-heat of middle high temperature the most heated stove after cooling and dewatering of generation heats up into high temperature
Low damp-heat, enters back into rotor drying machine.
As a second aspect of the present invention, it is provided that a kind of mud, the microwave energy saving environmental protection drying device of coal slime, including micro-
Ripple rotor drying machine, cyclone dust removal machine, it is characterised in that also include that heating furnace, heat pipe exchanger heat absorbing end, heat pipe exchanger are put
Hot junction, source pump.
Heating furnace and microwave rotor drying machine, cyclone dust removal machine, heat pipe exchanger heat absorbing end, source pump and heat pipe exchange
Device release end of heat is sequentially connected with；Heat pipe exchanger release end of heat is connected with heating furnace.
Wherein, heating furnace is the air stove of fire coal, combustion gas, fuel oil, or muffle electric furnace.
Wherein, microwave rotor drying machine includes: being dried the drying box on body, casing is provided with scraper plate in both sides, scrapes
Plate is separately positioned on axle and the motor shaft of body, and the both sides on casing top are respectively air inlet, air outlet, and the front end of casing sets
It is equipped with into pug pipe (connecting into pug storehouse)；Box bottom is provided with rotor, and rotor is fixed on the motor-driven rotor shaft of rotor
On, the bottom of rotor is provided with closes wind blow-off valve；Body side, top and bottom portion are provided with microwave waveguide feed-in mouth input drying box
In, described casing is steel plate structure, and whole drying box and inside are by industrial microwave heating schedule and the design of anti-leak standard, micro-
The microwave energy that ripple power supply produces passes drying machine side, napex or bottom by microwave waveguide feed-in mouth, is input to rotor and is dried
In machine cavity body.
Microwave frequency uses 2450MHz or 915MHz, and all microwave feed-in mouths to do dust-proof and hot blast partition process.
Wherein, heat pipe exchanger heat absorbing end and heat pipe exchanger release end of heat are the same heat pipes using metal shell to make,
It is provided with liquid working substance transmission energy in heat pipe, and constitutes circulating heat pipe；Heat pipe exchanger release end of heat is absorbed by liquid working substance
The energy of heat pipe exchanger heat absorbing end transmission, the most again to flowing through air releasing heat.
Wherein, source pump includes vaporizer, condenser, compressor, expansion valve, dust excluding hood.Described condenser and working medium
Fluid reservoir connects, and described source pump (is also connected with a controller etc.).
Further, dismountable dust excluding hood it is respectively arranged with before and after vaporizer.
Beneficial effects of the present invention:
The present invention is dried the bigger mud of viscosity and coal slime with microwave and hot blast combination drying mode, uses heat energy to follow simultaneously
Ring Application way, reduces system energy consumption；Control air circulation eliminates dusty gas discharge.Realize mud, coal slime is dried simultaneously
Effect significantly improves, and hot blast is entirely used for being dried and does not wastes, and exhaust gas heat pollutes not outer row, good dedusting effect, and cold drying reduces
Apparatus overheat is lost.Specifically include three below aspect:
One, efficiency
The thermal efficiency of general steam generator system is 30-40%, and remaining thermal dissipation is handed in equipment cooling, trunking loss, heat energy
Change loss, waste heat etc. to consume；And the thermal efficiency that the present invention uses roller drier is that comparison is high again smaller than 70%.
The present invention recycles heat energy contained in the steam of the original directly evaporation of discharge.The present invention recycles evaporation
Steam in the equipment of contained heat energy need to consume certain energy, rule of thumb general to reclaim and consume ratio be 1: 3, actual time
Receipts energy is 75%, and energy saving of system efficiency improves more than 37.5%.
Two, environmental protection
A) combust coal, combustion gas less because of energy-conservation, therefore reduce dust and CO2 discharge；
B) because using closed circulation, almost without dust, noxious gas emission；
C) because using closed circulation, hardly to airborne release high-temperature hot steam；
It is substantially reduced air thermal pollution, dust, harmful gas and the CO2 discharge produced around plant area.
Three, reliability
A) improve air aridity, can be reduced into drying machine hot blast temperature；
B) reduce hot blast temperature and just decrease the fault that apparatus overheat causes；
C) no matter the sleet of natural weather is fine wet, and the production capacity of drying system can keep stable.
Drying system produces stable, failure rate is low, reliability raising.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing microwave rotor drying machine.
Fig. 2 is the structural representation of the present invention.
Fig. 3 is the flue gas recirculation structural representation of the present invention.
Reference:
Rotor motor 1, mud, coal slime feed pipe 2, air inlet 3, scraper shaft 4, rotor shaft 5, rotor 6, microwave waveguide feed-in
Mouthfuls 7, body 8, air outlet 9, scraper plate 10, drying box 11, scraper shaft 12, close wind blow-off valve 13, scrape board motor 14.
Heating furnace 100, air stove 110, microwave rotor drying machine 200, cyclone dust removal machine 300, source pump 500, evaporation
Device 510, condenser 520, compressor 530, expansion valve 540, dust excluding hood 511, heat pipe exchanger heat absorbing end 610, heat pipe exchanger
Release end of heat 620, mud, coal slime 700, mud, the dry rear product 800 of coal slime.
The low damp-heat of air 900, high temperature 901, in hot and humid steam 902, the high damp-heat of middle temperature 903, low temperature and low humidity heat
Gas 904, the low damp-heat of middle temperature 905, the low damp-heat of middle high temperature 906, emission 911.
Detailed description of the invention
Below in conjunction with specific embodiment, the invention will be further described.Should be understood that following example are merely to illustrate this
Invent not for limiting the scope of the present invention.
The experimental technique of unreceipted actual conditions in the following example, generally according to normal condition, or the bar that manufacturer provides
Part is carried out.
Embodiment 1
A kind of mud, the microwave energy saving environmental protection drying device of coal slime, as shown in Figures 2 and 3, including: heating furnace 100, micro-
Ripple rotor drying machine 200, cyclone dust removal machine 300, heat pipe exchanger heat absorbing end 610, source pump 500 and heat pipe exchanger heat release
End 620.
Heating furnace 100 and microwave rotor drying machine 200, cyclone dust removal machine 300, heat pipe exchanger heat absorbing end 610, heat pump machine
Group 500 and heat pipe exchanger release end of heat 620 are sequentially connected with；Heat pipe exchanger release end of heat 620 is connected with heating furnace 100.
Prior art is limited only to use hot blast rotor drying machine, and the rotor drying machine of the present invention is a kind of microwave and hot blast
The rotor drying machine 200 of Hybrid Heating.Prior art is limited only to use fuel oil or burn the air stove 110 of coal.The present invention adds
Hot stove 100 is the air stove 110 of fire coal, combustion gas, fuel oil, or muffle electric furnace.
Microwave rotor drying machine 200 includes: rotor motor 1, mud, coal slime feed pipe 2, air inlet 3, scraper shaft 4, rotor
Axle 5, rotor 6, microwave waveguide feed-in mouth 7, body 8, air outlet 9, scraper plate 10, drying box 11, scraper shaft 12, close wind blow-off valve
13, board motor 14 is scraped.
Heat pipe exchanger heat absorbing end 610 uses metal shell to make heat pipe evaporator section, heat pipe exchanger heat absorbing end 610 and heat
Pipe exchanger release end of heat 620 is connected by circulation line, is inside provided with liquid working substance.Such as Shanghai Mai Feng microwave equipment company heat pipe
Product MF-RG-200 product.
Source pump 500, as it is shown on figure 3, include: vaporizer 510, condenser 520, compressor 530, expansion valve 540, remove
Dust hood 511, condenser 520 is connected with working medium fluid reservoir, and source pump 500 is controlled by controller.
The dust excluding hood 511 of detachable for cleaning it is respectively arranged with before and after vaporizer 510.
Heat pipe exchanger release end of heat 620 uses metal shell to make heat pipe condenser section, heat pipe exchanger heat absorbing end 610 and heat
Pipe exchanger release end of heat 620 is evaporator section and the condensation segment of same heat pipe, is connected by circulation line, but effect contrast,
Working medium transmits energy exchange wherein, and heat pipe exchanger release end of heat 620 heat energy is transmitted by heat pipe exchanger heat absorbing end 610 working medium
Come over.Heat pipe exchanger release end of heat 620 releases the energy passed over by heat pipe exchanger heat absorbing end 610 by working medium.
A kind of mud, the microwave energy saving environment-friendlydrying drying method of coal slime, comprise the following steps:
(1) after air 900 is heated up by heating furnace 100, become the low damp-heat of high temperature 901, be passed directly into microwave rotor and be dried
The entrance of machine 200, carries out microwave, hot blast rotor drying process.
Heating furnace 100 is the air stove of fire coal, combustion gas, fuel oil, or muffle electric furnace；Controlled permissible for realizing high-temperature flue-gas
Temperature controller or indirect type heating is used to operate.
(2) the low damp-heat of high temperature 901 is passed directly into microwave rotor drying machine 200 inside, enters early stage in drying machine 200
Mud, coal slime 700 that humidity is higher carry out microwave heating and hot blast heat transfer combination drying, are evaporated by the moisture of mud, coal slime, companion
Carry to microwave rotor drying machine 200 rear end with the low damp-heat of high temperature 901.
Microwave rotor drying machine 200 includes: rotor motor 1, mud, coal slime feed pipe 2, air inlet 3, scraper shaft 4, rotor
Axle 5, rotor 6, microwave waveguide feed-in mouth 7, body 8, air outlet 9, scraper plate 10, drying box 11, scraper shaft 12, close wind blow-off valve
13, board motor 14 is scraped.
Feed bin is by feed arrangement to drying machine feeding, and i.e. mud, coal slime feed pipe 2, centre are microwave and hot blast rotor
Be dried body 11, drawing mechanism is to close wind blow-off valve 13, the hot-wind inlet 3 of front end, the hot and humid gas air outlet 9 of rear end, is dried
Casing 11 passes through rotary wing 6 at work by carrying wet mud, coal slime 700 after forward direction.
The low damp-heat of high temperature 901 enters microwave rotor drying machine 200 from front end through air inlet 3, cooling moisture absorption air-flow from
Rear end is discharged through the upper port of air-out 9.
Wet mud, coal slime 700 enter microwave rotor drying machine 200 from front end through feed pipe 2, and cooling moisture absorption air-flow is from rear
End closes the lower port of wind blow-off valve 13 and discharges.
Mud, coal slime material agglomerate are heated by microwave entirety and the heating of hot blast surface in drying baker so that goo
The agglomerate kernel of material is reduced by microwave and hot blast Hybrid Heating, the viscosity of material with appearance, it is simple to broken up by rotor, smash, makes
Obtaining material can be the driest, and the material conveying under rotor and airflow function, material limit is dried, limit is transmitted to the back-end.
(3) dehydrated sludge, coal slime are closed wind blow-off valve 13 from the tail end of drying machine 200 and are discharged, and another wind is wet with rear end
Hot gas air outlet 9 is taken out of, obtain after cyclone dust removal machine 300 separates dehydrated sludge, coal slime dry after product 800.
Cyclone dust removal machine 300 is the common apparatus of dedusting industry, and it is widely used in air cleaning.
The low damp-heat of high temperature 901 in becoming after heat exchange hot and humid steam 902 from the tail end top of drying machine 200
Discharge, first pass through cyclone dust removal machine 300, remove a large amount of dust coal, lower the temperature subsequently into heat pipe exchanger heat absorbing end 610,
Become the high damp-heat of middle temperature 903.
Heat pipe exchanger heat absorbing end 610 uses the heat pipe evaporator section that metal shell is made, heat pipe exchanger heat absorbing end 610 with
Heat pipe exchanger release end of heat 620 is connected by circulation line, is provided with liquid working substance in heat pipe.As Shanghai wheat wind microwave equipment is public
Department's heat pipe product MF-RG-200 product.The working medium of heat pipe evaporator section plays the effect of the heat energy that absorbs heat from high temperature gas flow, stores；
Heat pipe exchanger release end of heat 620 i.e. heat pipe condenser section conveying energy, heat pipe exchanger release end of heat 620 is at damp-heat low with middle temperature
Heat release during 905 stream contact, output energy.
(4) through heat pipe exchanger heat absorbing end 610 lower the temperature after the high damp-heat of middle temperature 903 subsequently into source pump 500
Entrance, the entrance of source pump 500 arranges a vaporizer 510, and the high damp-heat of middle temperature 903 releases heat energy at this, and its heat energy is steamed
The working medium sent out in device 510 is absorbed；Simultaneously decline change because of temperature, the water-vapo(u)r saturation of this fraction and separate out in a large number, become
Low temperature and low humidity steam 904.
Vaporizer 510 is the arrival end of source pump 500, and the high damp-heat of middle temperature 903 is lowered the temperature at vaporizer 510, by gas
Working medium in heat energy passes to vaporizer 510 in stream, after cooling in thermal current steam because of water-vapo(u)r saturation curding out, this air-flow contains
Water significantly declines, and forms low temperature and low humidity steam 904；It is respectively arranged with dismountable dust excluding hood before and after described vaporizer 510
511。
Lay cold water collecting device below vaporizer 510, discharge after the cold water separated out is concentrated.
Dust excluding hood 511 is by low temperature and low humidity steam 904 dedusting after cooling；Dust excluding hood is a kind of membrane filter system, and employing is many
Granule in air just can all be filtered out by layer different pore size size exclusion film, uses serial or parallel connection more than two simultaneously
Multilamellar different pore size size exclusion film just can take out cleaning or rotation work, and the tail end of microwave rotor drying machine 200 is just cancelled
Direct discharge dust flue.
(5) described low temperature and low humidity steam 904 is introduced to the outlet of source pump 500, and this outlet arranges a condenser 520,
Described condenser is the outfan of source pump 500, and described condenser 520 passes through working medium by the evaporation of source pump 500 entrance
The heat energy that device 510 absorbs, feeds back the most again to low temperature and low humidity steam 904 so that it is become the low damp-heat of middle temperature 905.
Source pump 500 includes vaporizer 510, condenser 520, compressor 530, expansion valve 540, working medium fluid reservoir and control
Devices processed etc. are constituted；Source pump completes working medium circulation by compressor, absorbs heat at vaporizer, heat release at condenser.Described
Working medium is widely used in air-conditioning, as Jiangsu air conditioner Chunlan company, Beijing Xin Yue Refrigeration Technique company limited sell R22,
The cold-producing mediums such as R402.
Condenser 520 is the outfan of source pump 500, is introduced through low temperature and low humidity steam 904 in condensation from vaporizer 510
At device 520, absorptive condenser is discharged heat and is heated up and become the low damp-heat of middle temperature 905.
(6) then, the described low damp-heat of middle temperature 905 is drawn heat pipe exchanger release end of heat 620 and is heated up, and absorbs heat pipe exchange
After the heat energy of device release end of heat 620, become the low damp-heat of middle high temperature 906.
Heat pipe exchanger release end of heat 620 is connected by circulation line with heat pipe exchanger heat absorbing end 610, and constitutes cycling hot
Pipe, is provided with liquid working substance in described heat pipe；Described heat pipe exchanger release end of heat 620 is the heat release position of circulating heat pipe；Described
Heat pipe exchanger release end of heat 620 absorbs the energy of heat pipe exchanger heat absorbing end 610 release by working medium, the most again to flowing through air
Release heat.Low for middle temperature damp-heat 905 is warmed up to the low damp-heat of high temperature 906 by described heat pipe exchanger release end of heat 620.
Heat pipe exchanger heat absorbing end 610 and heat pipe exchanger release end of heat 620 are same heat-pipe apparatus, between the two by circulation
Pipeline connection, but effect contrast, energy exchange is exchanged by the liquid that centre has, and heat pipe exchanger release end of heat 620 is released
Heat energy is exactly the heat energy absorbed before heat pipe exchanger heat absorbing end 610, and this heat energy is the hot and humid of drying machine 200 tail end discharge
Energy in steam 902.
(7) in, the low damp-heat of high temperature 906 is introduced to the wind inlet section of heating furnace 100, through the heating of heating furnace 100, becomes
The low damp-heat of high temperature 901.
In step 7, the low damp-heat of middle high temperature 906 of generation the most heated stove 100 after cooling and dewatering heats up into high temperature
Low damp-heat 901.
The low damp-heat of high temperature 901, through low temperature dewatering, has higher load outlet capacity than the air 900 being introduced directly into, enters
Enter in drying machine 200, water separation capability can be significantly improved；No matter the sleet of natural weather is fine wet, the high temperature of assembly of the invention
Smoke moisture can be basically unchanged, and makes the dewatering of this device stablize, be not required to too high raising into drying machine 200 hot blast temperature
Just can reach, this just reduces equipment fault and obtains drying energy saving effect.
Heat pipe exchanger heat absorbing end 610 utilizes hot pipe technique can cool to after energy fully absorbs in high-temperature hot-air
Less than 100 DEG C hot blasts, then less than 100 DEG C hot blasts just can directly utilize heat pump techniques and carry out dehumidifying and Energy harvesting so that
Middle high-temperature hot-air energy is fully reclaimed and is utilized；Thereafter after hot blast dehumidifies, first pass through heat pump temperature raising, then handed over by heat pipe
Previous heat energy is fed back by the heat pipe of parallel operation release end of heat 620 the most completely, and the moisture content in steam is only discharged with cold water form, heat
Can be recycled.
The low damp-heat of high temperature 901, through low temperature dewatering before this, has higher than the air directly introduced from air
Carry outlet capacity, enter in drying machine, water separation capability can be significantly improved；The no matter height of the fine wet drying system of sleet of natural weather
Temperature smoke moisture can be basically unchanged, and makes drying system dewatering stablize, be not required to too high raising into drying machine hot blast temperature
Just can reach, this just reduces equipment fault and obtains drying energy saving effect.
The ultimate principle of the present invention, principal character and advantages of the present invention have more than been shown and described.The technology of the industry
Personnel, it should be appreciated that the present invention is not restricted to the described embodiments, simply illustrating this described in above-described embodiment and description
The principle of invention, the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these become
Change and improvement both falls within scope of the claimed invention.Claimed scope by appending claims and
Equivalent defines.
Claims (13)
1. a mud, the microwave energy saving drying means of coal slime, it is characterised in that comprise the following steps:
(1) air (900) is heated up into the low damp-heat of high temperature (901) by heating furnace, is passed directly into microwave rotor drying machine (200) chamber
The air inlet (3) of body；Mud to be dried, coal slime viscous material (700) are continuous to micro-by microwave rotor drying machine feed pipe (2)
Ripple rotor drying machine (200) intracavity carries；The microwave energy that microwave power supply produces passes drying machine by microwave waveguide feed-in mouth (7)
Metal shell, is input in microwave rotor dryer cavity；In drying machine, hot-air, microwave and mud, coal slime material three
Mud or the microwave of coal slime material, hot blast Mixture drying method is carried out in rotor drying box (11)；
(2) microwave one in the low damp-heat of described high temperature (901) is passed directly into microwave rotor drying machine (200) and being simultaneously passed through
Rise, to entering, from feed bin, humidity is higher in rotor drying machine mud, coal slime viscous material (700) carries out the heating of microwave entirety and
Hot blast surface heat transfer；After mud or coal slime are heated, overall reduction viscosity, agglomerate are easier to be broken up by rotor scraper plate；Dirty
Mud or coal slime agglomerate broken up after increase surface area, material moisture by rapid evaporation, with the low damp-heat of high temperature (901) to be dried
Machine tail end carries；
(3) bottom of described microwave rotor drying machine tail end is provided with and closes wind blow-off valve (13), dehydrated sludge or coal slime from dry
The wind blow-off valve (13) that closes of the bottom of dry machine tail end is discharged；In dry run, the low damp-heat of high temperature (901) is after heat exchange
In becoming, hot and humid steam (902) is discharged from other end top air outlet (9) of drying machine, first passes through cyclone dust removal machine
(300), remove a large amount of mud or coal slime dust, lower the temperature subsequently into heat pipe exchanger heat absorbing end (610), become middle temperature high
Damp-heat (903)；
(4) the high damp-heat of described middle temperature (903), enters source pump (500) entrance, and the entrance of source pump arranges a vaporizer
(510), the high damp-heat of middle temperature (903) releases heat energy at this, and its heat energy is absorbed by the working medium in vaporizer (510)；Simultaneously because of
Temperature declines change, the water-vapo(u)r saturation of this fraction and separate out in a large number, become low temperature and low humidity steam (904)；
(5) described low temperature and low humidity steam (904) is introduced to source pump (500) outlet, and this outlet arranges a condenser (520),
Condenser (520) is the outfan of source pump (500), and described condenser (520) passes through working medium by the steaming of source pump entrance
Send out the heat energy that device (510) absorbs, the most again feed back to low temperature and low humidity steam (904) so that it is become the low damp-heat of middle temperature
(905)；
(6) then, the described low damp-heat of middle temperature (905) is introduced to heat pipe exchanger release end of heat (620) and heats up, and absorbs heat pipe
Heat energy after, become the low damp-heat of middle high temperature (906)；
It is by circulation line even that the cooling of described heat pipe exchanger heat absorbing end (610) and heat pipe exchanger release end of heat (620) heat up
Logical same heat pipe, the heat energy that the heat pipe exchanger that the low damp-heat of middle temperature (905) is absorbed is released, it is simply that heat pipe exchanger before
The energy of hot and humid steam (902) in Xi Shouing；
Further, described heat pipe exchanger receives the energy of heat pipe exchanger heat absorbing end (610) transmission release by liquid working substance
Amount, releases heat by heat pipe exchanger release end of heat (620) to the air flow through the most again；
(7) the low damp-heat of described middle high temperature (906) is introduced to the wind inlet section of heating furnace, through the heating of heating furnace, becomes high temperature
Low damp-heat (901), enters back in microwave rotor drying machine (200)；
(8) described microwave rotor drying machine (200) is a kind of universal hot blast rotor drying machine, comprising: be dried on body (8)
Drying box (11) both sides in be provided with scraper plate (10), scraper plate is separately positioned on the axle (12) of body and scrapes board motor (14) axle
On, the both sides on casing top are respectively air inlet (3), air outlet (9), and the front end of casing is provided with feed pipe (2)；Box bottom
Being provided with rotor (6), rotor is fixed in the rotor shaft (5) that motor (1) drives, and the bottom of rotor is provided with closes wind blow-off valve
(13)；Described casing is steel plate structure, and whole drying box and inside are by industrial microwave heating schedule and the design of anti-leak standard
And manufacture, the microwave energy that microwave power supply produces passes drying machine side, top or bottom by microwave waveguide feed-in mouth (7), defeated
Enter in microwave rotor drying machine (200) cavity.
Method the most according to claim 1, it is characterised in that in step (1), described heating furnace (100) is coal-fired, combustion
Gas, the air stove of fuel oil or muffle electric furnace.
Method the most according to claim 1, it is characterised in that in step (2), the low damp-heat of described high temperature is from microwave rotor
Drying machine (200) front side enters drying box, discharges after cooling moisture absorption on rear side of microwave rotor drying machine (200) casing；Described
Mud, coal slime viscous material (700) enter drying box (11), the institute after dehydration from the front end feed pipe (2) of drying box
The mud stated, coal slime viscous material dry after product (800) arrange from the bottom of microwave rotor drying machine rotor close wind discharge
Valve (13) is discharged；Described microwave frequency uses 2450MHz or 915MHz, and whole drying chamber is set by industrial microwave anti-leak standard
Meter, all microwave waveguides feed-in mouth (7) to do dust-proof and hot blast partition process.
Method the most according to claim 1, it is characterised in that heat pipe exchanger described in step (3) uses metal shell
Make, have two ends, be heat absorbing end and release end of heat respectively；Heat pipe exchanger is connected by circulation line, is provided with liquid in heat pipe
Working medium, and constitute circulating heat pipe, heat is reached other heat release one end by heat pipe one end of absorbing heat, and this circulation is quickly carried out,
Heat is come by conduction continuously, and this exchanger can exchange the heat energy than common heat pump higher temperature；
In described heat pipe exchanger heat absorbing end (610), working medium is absorbed heat from high temperature gas flow, is stored energy in working medium；?
In described heat pipe exchanger release end of heat (620), working medium is to cryogenic gas heat release, discharge storage energy from working medium.
Method the most according to claim 1, it is characterised in that in step (4), described source pump includes: vaporizer
(510), condenser (520), compressor (530), expansion valve (540), dust excluding hood (511), working medium fluid reservoir and controller.
Method the most according to claim 1, it is characterised in that in step (4), described vaporizer (510) is source pump
(500) arrival end, the high damp-heat of middle temperature (903) is lowered the temperature at vaporizer (510) place, heat energy in air-flow is passed to vaporizer
Interior working medium, in the thermal current after cooling steam because of water-vapo(u)r saturation curding out, this air-flow is aqueous significantly to be declined, formed low temperature
Low damp-heat；It is provided with dismountable dust excluding hood (511), by the low temperature and low humidity steam after cooling before and after described vaporizer (510)
(904) dedusting；Vaporizer (510) lower section is provided with cold water collecting device, the harmful gas by the cold water separated out and dissolved in water,
Dust is concentrated and is discharged.
Method the most according to claim 1, it is characterised in that in step (5), described condenser (520) is source pump
(500) outfan, the low temperature and low humidity steam (904) being introduced through from vaporizer (510) at condenser at absorptive condenser (520)
Discharge heat and heat up into the low damp-heat of middle temperature (905).
Method the most according to claim 1, it is characterised in that in step (6), described heat pipe exchanger release end of heat (620)
With aforementioned heat pipe exchanger heat absorbing end (610) by circulation line UNICOM, and constitute circulating heat pipe；Described heat pipe exchanger heat release
End (620) absorbs, by working medium, the energy that heat pipe exchanger heat absorbing end (610) is transmitted, and releases heat to the air flow through the most again
Amount；Described heat pipe exchanger release end of heat (620) is to the low damp-heat heat release of middle temperature, and is heated up, and becomes the low damp-heat of middle high temperature
(906)。
Method the most according to claim 1, it is characterised in that in step (7), the low damp-heat of the middle high temperature (906) of generation
After cooling and dewatering, heat up into the low damp-heat of high temperature through heating furnace again, be again introduced into microwave rotor drying machine.
10. a microwave energy saving environmental protection drying device for mud, coal slime, including microwave rotor drying machine (200), cyclone dust removal machine
(300), it is characterised in that also include heating furnace (100), heat pipe exchanger heat absorbing end (610), heat pipe exchanger release end of heat
(620), source pump (500)；
Described heating furnace (100) and microwave rotor drying machine (200), cyclone dust removal machine (300), heat pipe exchanger heat absorbing end
(610), source pump (500) and heat pipe exchanger release end of heat (620) are sequentially connected with；Described heat pipe exchanger release end of heat (620)
It is connected with heating furnace (100)；
Described microwave rotor drying machine (200) including: being dried the drying box (11) on body, drying box (11) both sides are built-in
Having scraper plate (10), scraper plate is separately positioned on the axle (12) of body and scrapes on the axle of board motor (14), and the both sides on casing top are respectively
For air inlet (3), air outlet (9), the front end of casing is provided with feed pipe (2)；Box bottom is provided with rotor (6), and rotor is solid
Being scheduled in the rotor shaft (5) that rotor motor (1) drives, the bottom of rotor is provided with closes wind blow-off valve (13)；Body side, top and
Bottom is provided with in microwave waveguide feed-in mouth (7) input drying box (11), and described casing is steel plate structure, whole drying box and
Inside is by industrial microwave heating schedule and the design of anti-leak standard, and the microwave energy that microwave power supply produces is by microwave waveguide feed-in mouth
(7) pass drying machine side, top or bottom, be input in microwave rotor drying machine (200) cavity；
Described microwave frequency uses 2450MHz or 915MHz, and all microwave feed-in mouths to do dust-proof and hot blast partition process.
11. mud according to claim 10, the microwave energy saving environmental protection drying device of coal slime, it is characterised in that described in add
Hot stove (100) is the air stove of fire coal, combustion gas, fuel oil, or is muffle electric furnace.
12. mud according to claim 10, the microwave energy saving environmental protection drying device of coal slime, it is characterised in that described heat
Pipe exchanger heat absorbing end (610) and heat pipe exchanger release end of heat (620) are to use metal shell to make same heat pipe, described heat pipe
It is provided with liquid working substance transmission energy in pipe, and constitutes circulating heat pipe；Described heat pipe exchanger release end of heat (620) passes through liquid work
Matter absorbs the energy that heat pipe exchanger heat absorbing end (610) is transmitted, the most again to flowing through air releasing heat.
13. mud according to claim 10, the microwave energy saving environmental protection drying device of coal slime, it is characterised in that described heat
Pump assembly (500) includes vaporizer (510), condenser (520), compressor (530), expansion valve (540), dust excluding hood (511)；Institute
Stating condenser to be connected with working medium fluid reservoir, described source pump is also connected with a controller；
Being respectively arranged with dismountable dust excluding hood (511) before and after described vaporizer, the lower section of described vaporizer is provided with cold water and receives
Acquisition means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110308710.7A CN103043878B (en) | 2011-10-13 | A kind of mud, the microwave energy saving drying means of coal slime and device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110308710.7A CN103043878B (en) | 2011-10-13 | A kind of mud, the microwave energy saving drying means of coal slime and device thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103043878A CN103043878A (en) | 2013-04-17 |
| CN103043878B true CN103043878B (en) | 2016-12-14 |
Family
ID=
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2913453B2 (en) * | 1994-07-28 | 1999-06-28 | 株式会社丸金佐藤造船鉄工所 | Sludge drying equipment |
| CN1762862A (en) * | 2004-10-20 | 2006-04-26 | 吴为中 | Sludge microwave handling method |
| CN1762863A (en) * | 2004-10-20 | 2006-04-26 | 吴为中 | Sludge drying and resource disposal process |
| CN201406368Y (en) * | 2009-05-11 | 2010-02-17 | 沈阳禹华环保有限公司 | Drier |
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2913453B2 (en) * | 1994-07-28 | 1999-06-28 | 株式会社丸金佐藤造船鉄工所 | Sludge drying equipment |
| CN1762862A (en) * | 2004-10-20 | 2006-04-26 | 吴为中 | Sludge microwave handling method |
| CN1762863A (en) * | 2004-10-20 | 2006-04-26 | 吴为中 | Sludge drying and resource disposal process |
| CN201406368Y (en) * | 2009-05-11 | 2010-02-17 | 沈阳禹华环保有限公司 | Drier |
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